JPS57138238A - Synchronizing pattern generating circuit - Google Patents

Synchronizing pattern generating circuit

Info

Publication number
JPS57138238A
JPS57138238A JP56023294A JP2329481A JPS57138238A JP S57138238 A JPS57138238 A JP S57138238A JP 56023294 A JP56023294 A JP 56023294A JP 2329481 A JP2329481 A JP 2329481A JP S57138238 A JPS57138238 A JP S57138238A
Authority
JP
Japan
Prior art keywords
synchronizing pattern
generating circuit
pattern generating
pattern
synchronizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56023294A
Other languages
Japanese (ja)
Other versions
JPS6149862B2 (en
Inventor
Isao Naganuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Telecom Networks Ltd
Original Assignee
Fujitsu Telecom Networks Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Telecom Networks Ltd filed Critical Fujitsu Telecom Networks Ltd
Priority to JP56023294A priority Critical patent/JPS57138238A/en
Publication of JPS57138238A publication Critical patent/JPS57138238A/en
Publication of JPS6149862B2 publication Critical patent/JPS6149862B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To simplify a circuit and to lower its price by using an RAM without using many stages of shift registers. CONSTITUTION:A random access memory stored with received data is provided and every time data is written in this memory, the memory contents are read at a constant address period to generate a discrimination pattern. This discrimination pattern is compared with a synchronizing pattern to detect a synchronizing pattern in the received data.
JP56023294A 1981-02-19 1981-02-19 Synchronizing pattern generating circuit Granted JPS57138238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023294A JPS57138238A (en) 1981-02-19 1981-02-19 Synchronizing pattern generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023294A JPS57138238A (en) 1981-02-19 1981-02-19 Synchronizing pattern generating circuit

Publications (2)

Publication Number Publication Date
JPS57138238A true JPS57138238A (en) 1982-08-26
JPS6149862B2 JPS6149862B2 (en) 1986-10-31

Family

ID=12106583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023294A Granted JPS57138238A (en) 1981-02-19 1981-02-19 Synchronizing pattern generating circuit

Country Status (1)

Country Link
JP (1) JPS57138238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224342A (en) * 1984-04-23 1985-11-08 Nec Corp Frame synchronizing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224342A (en) * 1984-04-23 1985-11-08 Nec Corp Frame synchronizing circuit

Also Published As

Publication number Publication date
JPS6149862B2 (en) 1986-10-31

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